Strong and Selective Anion Binding within the Central Cavity of Molecular Knots and Links.

Jean-François Ayme; Jonathon E Beves; Christopher J Campbell; Guzman Gil-Ramirez; David A Leigh; Alexander J Stephens

doi:10.1021/jacs.5b06340

Strong and Selective Anion Binding within the Central Cavity of Molecular Knots and Links.

Jean-François Ayme, Jonathon E Beves, Christopher J Campbell, Guzman Gil-Ramirez, David A Leigh, Alexander J Stephens

Research output: Contribution to journal › Article › peer-review

Abstract

A molecular pentafoil knot and doubly and triply entwined [2]catenanes based on circular Fe(II) double helicate scaffolds bind halide anions in their central cavities through electrostatic and CH···X(-) hydrogen-bonding interactions. The binding is up to (3.6 ± 0.2) × 10(10) M(-1) in acetonitrile (for pentafoil knot [2·Cl](PF6)9), making these topologically complex host molecules some of the strongest synthetic noncovalent binders of halide anions measured to date, comparable in chloride ion affinity to silver salts.

Original language	English
Pages (from-to)	9812-9815
Number of pages	3
Journal	Journal of the American Chemical Society
Volume	137
Issue number	31
DOIs	https://doi.org/10.1021/jacs.5b06340
Publication status	Published - 12 Aug 2015

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title = "Strong and Selective Anion Binding within the Central Cavity of Molecular Knots and Links.",

abstract = "A molecular pentafoil knot and doubly and triply entwined [2]catenanes based on circular Fe(II) double helicate scaffolds bind halide anions in their central cavities through electrostatic and CH···X(-) hydrogen-bonding interactions. The binding is up to (3.6 ± 0.2) × 10(10) M(-1) in acetonitrile (for pentafoil knot [2·Cl](PF6)9), making these topologically complex host molecules some of the strongest synthetic noncovalent binders of halide anions measured to date, comparable in chloride ion affinity to silver salts.",

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AU - Ayme, Jean-François

AU - Beves, Jonathon E

AU - Campbell, Christopher J

AU - Gil-Ramirez, Guzman

AU - Leigh, David A

AU - Stephens, Alexander J

PY - 2015/8/12

Y1 - 2015/8/12

N2 - A molecular pentafoil knot and doubly and triply entwined [2]catenanes based on circular Fe(II) double helicate scaffolds bind halide anions in their central cavities through electrostatic and CH···X(-) hydrogen-bonding interactions. The binding is up to (3.6 ± 0.2) × 10(10) M(-1) in acetonitrile (for pentafoil knot [2·Cl](PF6)9), making these topologically complex host molecules some of the strongest synthetic noncovalent binders of halide anions measured to date, comparable in chloride ion affinity to silver salts.

AB - A molecular pentafoil knot and doubly and triply entwined [2]catenanes based on circular Fe(II) double helicate scaffolds bind halide anions in their central cavities through electrostatic and CH···X(-) hydrogen-bonding interactions. The binding is up to (3.6 ± 0.2) × 10(10) M(-1) in acetonitrile (for pentafoil knot [2·Cl](PF6)9), making these topologically complex host molecules some of the strongest synthetic noncovalent binders of halide anions measured to date, comparable in chloride ion affinity to silver salts.

U2 - 10.1021/jacs.5b06340

DO - 10.1021/jacs.5b06340

M3 - Article

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SP - 9812

EP - 9815

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 31

ER -

Strong and Selective Anion Binding within the Central Cavity of Molecular Knots and Links.

Abstract

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